CN215815270U - Cable for photovoltaic power plant with temperature measurement function - Google Patents
Cable for photovoltaic power plant with temperature measurement function Download PDFInfo
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- CN215815270U CN215815270U CN202121154348.8U CN202121154348U CN215815270U CN 215815270 U CN215815270 U CN 215815270U CN 202121154348 U CN202121154348 U CN 202121154348U CN 215815270 U CN215815270 U CN 215815270U
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Abstract
The utility model relates to the technical field of cables, in particular to a cable with a temperature measuring function for a photovoltaic power station, which comprises a temperature measuring optical fiber and two wire core assemblies, wherein each wire core assembly comprises a copper conductor, a first insulating sheath and a metal foil shielding layer which are sequentially arranged from inside to outside; the two wire core assemblies and the temperature measuring optical fibers are arranged in a close fit manner in a triangular shape to form a cable core; the periphery side of cable core has the water blocking layer around the package, and the periphery side of water blocking layer is equipped with the armor, and the periphery side of armor is equipped with the second insulating sheath, and it has magnesium oxide to fill between water blocking layer and the cable core and between second insulating sheath and the armor, and the surface of second insulating sheath is equipped with fire protection coating. Through add temperature measurement optic fibre in the cable to temperature measurement optic fibre hugs closely with sinle silk subassembly and arranges, thereby makes temperature measurement optic fibre and sinle silk subassembly the same not receive mechanical external force influence, can monitor the temperature of sinle silk subassembly, can monitor the temperature state of cable in real time.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a cable with a temperature measuring function for a photovoltaic power station.
Background
A large amount of direct current cables in a photovoltaic power station need to be laid outdoors, the environmental condition is severe, and the cable materials are determined according to the conditions of ultraviolet resistance, ozone resistance, severe temperature change and chemical erosion. Ordinary material cable uses for a long time under this environment, will lead to cable sheath breakable, can decompose cable insulation layer even, in addition under the environment of long-time insolate or high temperature, the temperature of cable self can continuously rise, leads to the emergence of conflagration very easily, and the security is relatively poor, influences the life of system greatly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cable with a temperature measuring function for a photovoltaic power station, aiming at the defects in the prior art.
The purpose of the utility model is realized by the following technical scheme: the application provides a cable with a temperature measuring function for a photovoltaic power station, which comprises a temperature measuring optical fiber and two wire core assemblies, wherein each wire core assembly comprises a copper conductor, a first insulating sheath and a metal foil shielding layer which are sequentially arranged from inside to outside; the two wire core assemblies and the temperature measuring optical fibers are arranged in a close fit manner in a triangular shape to form a cable core; the periphery side of cable core has the water blocking layer around the package, and the periphery side of water blocking layer is equipped with the armor, and the periphery side of armor is equipped with the second insulating sheath, and it has magnesium oxide to fill between water blocking layer and the cable core and between second insulating sheath and the armor, and the surface of second insulating sheath is equipped with fire protection coating.
Wherein, the copper conductor is formed by hinging at least seven copper wires.
The first insulating sheath and the second insulating sheath are both polyvinyl chloride sheaths.
Wherein the ratio of the thickness of the second insulating sheath to the thickness of the first sheath is 1: 0.3-0.5.
Wherein, the metallic foil shielding layer is the aluminium foil shielding layer, and the aluminium foil shielding layer is around the package in the periphery side of first insulating sheath.
The waterproof layer is a polyester fiber waterproof tape, and the polyester fiber waterproof tape is wrapped on the outer peripheral side of the cable core.
Wherein the armor layer is a thin steel wire armor layer, and the thickness of the thin steel wire armor layer is 0.4-0.7 mm.
Wherein, the fireproof coating is fireproof paint.
The utility model has the beneficial effects that: the utility model provides a cable for photovoltaic power plant with temperature measurement function, through add temperature measurement optic fibre in the cable, and temperature measurement optic fibre hugs closely with sinle silk subassembly and arranges, thereby make temperature measurement optic fibre and sinle silk subassembly the same not influenced by mechanical external force, can monitor the temperature of sinle silk subassembly, can monitor the temperature status of cable in real time, compared with the prior art, two sinle silk subassemblies and temperature measurement optic fibre are hugged closely with the triangle-shaped and are arranged, make the cable core structure more compact, reduce the shared volume of cable core, the packing has magnesium oxide inside the cable, the fire prevention high temperature resistance performance has further been strengthened, the cable core outside is equipped with water blocking layer and armor, the dampproofing and corrosion resistance of improvement cable, the surface of cable still coats has the fire protection coating, the high temperature resistance performance of cable self has been improved, the poor problem of security in the past is solved.
Drawings
The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a cross-sectional view of a cable for a photovoltaic power station having a temperature measurement function according to the present embodiment.
Description of the drawings: temperature measurement optic fibre 1, sinle silk subassembly 2, copper conductor 21, first insulating sheath 22, metal foil shielding layer 23, water-blocking layer 3, armor 4, magnesium oxide 5, second insulating sheath 6, fire protection coating 7.
Detailed Description
The utility model is further described with reference to the following examples.
Referring to fig. 1, the embodiment of the cable with a temperature measurement function for a photovoltaic power station includes a temperature measurement optical fiber 1 and two core assemblies 2, wherein each core assembly 2 includes a copper conductor 21, a first insulating sheath 22 and a metal foil shielding layer 23, which are sequentially arranged from inside to outside. In the present embodiment, the copper conductor 21 is formed by twisting at least seven copper wires, and the specific number may be selected according to the diameter and material of the copper wires. By covering the outer peripheral side of the copper conductor 21 with an insulating sheath, the copper conductor 21 is protected, and the core assembly 2 is more durable. In addition, the metal foil shielding layer 23 arranged on the outer periphery of the first insulating sheath 22 can effectively shield the temperature measuring optical fiber 1, and the normal operation of the temperature measuring optical fiber 1 is not affected. It should be noted that the temperature measuring optical fiber 1 is a grating optical fiber with a temperature measuring grating, which can monitor the temperature around the temperature measuring optical fiber 1, so as to monitor the temperature on the outer periphery of the conductor core.
As the improvement, the two wire core assemblies 2 and the temperature measuring optical fiber 1 are closely arranged in a triangular shape to form a cable core, and a waterproof layer 3 is wound on the outer peripheral side of the cable core. Through setting up water-blocking layer 3, can improve the waterproof and humidity resistance of cable effectively. The outer periphery of the water-resistant layer 3 is provided with an armor layer 4. The armor layer 4 can effectively avoid damage of insects and mice in a hostile environment. The periphery side of armor 4 is equipped with second insulating sheath 6, through setting up second insulating sheath 6 to further improve the wear-resisting, the high temperature resistance of cable, thereby prolong the life of cable. Magnesium oxide 5 is filled between the water-resistant layer 3 and the cable core and between the second insulating sheath 6 and the armor layer 4. Through filling magnesium oxide 5 in the cable inside to promote the insulating properties of cable, fill through the closely knit mode of vibration, thereby further improve the structural strength of cable. The outer surface of the second insulating sheath 6 is provided with a fire retardant coating 7. Through setting up fireproof coating 7, can improve the high temperature resistance of cable self effectively.
In this embodiment, the first insulating sheath 22 and the second insulating sheath 6 are both polyvinyl chloride sheaths. The polyvinyl chloride sheath has the characteristics of good heat resistance, strong load capacity, no melting, chemical corrosion resistance and high mechanical strength.
In the present embodiment, the ratio of the thickness of the second insulating sheath to the thickness of the first sheath is 1:0.3 to 0.5, and it should be noted that it is preferable that the ratio of the thickness of the second insulating sheath to the thickness of the first sheath is 1: 0.4.
In this embodiment, the metal foil shielding layer 23 is an aluminum foil shielding layer wrapped around the outer peripheral side of the first insulating sheath 22. The aluminum foil shielding layer has the characteristics of low cost and good shielding effect.
In this embodiment, the water-blocking layer 3 is a polyester fiber water-blocking tape, and the polyester fiber water-blocking tape is wrapped around the outer periphery of the cable core. The polyester fiber water-blocking tape has no corrosiveness, can reduce the infiltration of water and moisture in the optical cable, and prolongs the service life of the optical cable.
In this embodiment, the armor layer 4 is a thin steel wire armor layer 4, and the thickness of the thin steel wire armor layer 4 is 0.4-0.7 mm. As a preferred scheme, the armor layer 4 can be made of thin steel wires with the thickness of 0.5mm, and is low in cost and high in strength.
Wherein, the fireproof coating 7 is fireproof paint. The fireproof coating is characterized in that the fireproof capacity of the material can be improved, the flame spread propagation speed can be slowed down, or the combustion can be stopped within a certain time by brushing the coating on the surface of the material, and the coating is called fireproof coating or flame-retardant coating, is commercially available and belongs to the prior art.
The cable with temperature measurement function for the photovoltaic power station of the embodiment is characterized in that the temperature measurement optical fiber 1 is additionally arranged in the cable, the temperature measurement optical fiber 1 is closely attached to the wire core assembly 2, thereby leading the temperature measuring optical fiber 1 and the wire core component 2 to be not influenced by mechanical external force, monitoring the temperature of the wire core component 2, monitoring the temperature state of the cable in real time, compared with the prior art, two sinle silk subassemblies 2 and temperature measurement optic fibre 1 are hugged closely with the triangle-shaped and are arranged, make the cable core structure more compact, reduce the shared volume of cable core, the cable the inside is filled has magnesium oxide 5, the fire prevention high temperature resistance performance has further been strengthened, the cable core outside is equipped with water blocking layer 3 and armor 4, the dampproofing corrosion resisting property of improvement cable, the surface of cable still coats and has fire prevention coating 7, the high temperature resistance performance of cable self has been improved, the poor problem of security in the past is solved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a cable for photovoltaic power plant with temperature measurement function which characterized in that: the temperature measurement optical fiber comprises a temperature measurement optical fiber and two wire core assemblies, wherein each wire core assembly comprises a copper conductor, a first insulating sheath and a metal foil shielding layer which are sequentially arranged from inside to outside;
the two wire core assemblies and the temperature measuring optical fibers are arranged in a close fit manner in a triangular shape to form a cable core;
a waterproof layer is wound on the outer peripheral side of the cable core, an armor layer is arranged on the outer peripheral side of the waterproof layer, a second insulating sheath is arranged on the outer peripheral side of the armor layer, magnesium oxide is filled between the waterproof layer and the cable core and between the second insulating sheath and the armor layer, and a fireproof coating is arranged on the outer surface of the second insulating sheath.
2. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the copper conductor is formed by hinging at least seven copper wires.
3. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the first insulating sheath and the second insulating sheath are both polyvinyl chloride sheaths.
4. The cable with temperature measurement function for photovoltaic power station of claim 3, characterized in that: the ratio of the thickness of the second insulating sheath to the thickness of the first sheath is 1: 0.3-0.5.
5. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the metal foil shielding layer is an aluminum foil shielding layer, and the aluminum foil shielding layer is wrapped on the peripheral side face of the first insulating sheath.
6. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the waterproof layer is a polyester fiber waterproof tape, and the polyester fiber waterproof tape is wrapped on the outer peripheral side of the cable core.
7. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the armor layer is a thin steel wire armor layer, and the thickness of the thin steel wire armor layer is 0.4-0.7 mm.
8. The cable with temperature measurement function for photovoltaic power station of claim 1, characterized in that: the fireproof coating is fireproof paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121154348.8U CN215815270U (en) | 2021-05-26 | 2021-05-26 | Cable for photovoltaic power plant with temperature measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121154348.8U CN215815270U (en) | 2021-05-26 | 2021-05-26 | Cable for photovoltaic power plant with temperature measurement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215815270U true CN215815270U (en) | 2022-02-11 |
Family
ID=80174272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121154348.8U Active CN215815270U (en) | 2021-05-26 | 2021-05-26 | Cable for photovoltaic power plant with temperature measurement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215815270U (en) |
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2021
- 2021-05-26 CN CN202121154348.8U patent/CN215815270U/en active Active
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